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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
73
GRADE
C
FIX
4
REVIEW
3
PASS
6
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
88
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
95
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.02 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

1.70 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

0 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.008

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

1.89 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

1.70 s

Page Load Progression

600 ms
1.2 s
1.8 s
2.4 s
3.0 s
3.6 s
4.2 s
4.8 s
Checks
15
6 PASS 3 REVIEW 4 FIX
D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (1.6 MiB of 1.6 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Bundles
Action
66 scripts, 577 KB unused
FIX
66 scripts, 577 KB unused
Warning::
https://workers.cloudflare.com/_astro/_icon.B3faMr...: 179 KB unused (94%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://workers.cloudflare.com/_astro/registry.CI6...: 147 KB unused (99%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://workers.cloudflare.com/_astro/paper-full.B...: 83 KB unused (70%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://ot.www.cloudflare.com/ot/scripttemplates/2...: 66 KB unused (60%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://workers.cloudflare.com/_astro/index.D5GVa2...: 34 KB unused (60%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 577 KB
577 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://workers.cloudflare.com/_astro/_icon.B3faMrhj.js190 KB179 KB (94%)✓3rd
https://workers.cloudflare.com/_astro/registry.CI6CKhvu.js149 KB147 KB (99%)✓3rd
https://workers.cloudflare.com/_astro/paper-full.BYcUELjp.js119 KB83 KB (70%)✓3rd
https://ot.www.cloudflare.com/ot/scripttemplates/202503.1.0/otBannerSdk.js110 KB66 KB (60%)✓3rd
https://workers.cloudflare.com/_astro/index.D5GVa2p2.js57 KB34 KB (60%)✓3rd
https://workers.cloudflare.com/_astro/common.0FHQb7_N.js25 KB24 KB (97%)✓3rd
https://workers.cloudflare.com/_astro/proxy.CVQLZZWt.js39 KB23 KB (60%)✓3rd
https://workers.cloudflare.com/_astro/client.CaeA_d_Z.js56 KB21 KB (38%)✓3rd
https://workers.cloudflare.com/_astro/index.RToQXzXG.js2 KB—✓3rd
https://workers.cloudflare.com/_astro/_keyframe.NQCmYj5Y.js3 KB—✓3rd

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

F
Page Weight Inventory
Action
98 resources · 1.6 MB · 577 KB savings available
FIX
98 resources · 1.6 MB · 577 KB savings available
Warning::
Page weight 575 KB over 1MB target
Got: 1.6 MB Expected: ≤ 1 MB
Info::
~577 KB of savings available
Warning::
97 third-party resources (100% of weight)
Info::
1 resources over 200KB
98 resources · 1.6 MiB · 97 third-party 575.2 KiB over 1MB target
JavaScript 61% · 975.7 KiB
Document 17% · 268.4 KiB
Image 12% · 192.3 KiB
CSS 4% · 67.4 KiB
Font 4% · 67.1 KiB
Other 2% · 28.3 KiB

~577.2 KiB of savings available

Remove unused JavaScript: 577.2 KiB
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

C
Page Weight Budget
Action
1.6 MB transferred, 98 requests
REVIEW
1.6 MB transferred, 98 requests
Info::
Page weighs 5.0 MB (1.6 MB transferred)
Warning::
JavaScript is 976 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 976 KB
Info::
98 HTTP requests
Info::
Estimated 0.33 g CO2 per page load
1.6 MB / 2.4 MB budget
1.6 MB transferred
98 requests
0.33 g CO2 per page load
JavaScript 975.7 KiB 61%
HTML 268.4 KiB 17%
Other 198.0 KiB 12%
Fonts 67.1 KiB 4%
CSS 62.4 KiB 4%
Images 22.4 KiB 1%
Other 3.2 KiB 0%
Other 2.1 KiB 0%
0 2.4 MB 4.9 MB
Approaching limit

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

C
Image Optimization
Action
13 images, 0 KB saveable
REVIEW
13 images, 0 KB saveable
Warning::
https://workers.cloudflare.com/companies/atlassian... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://workers.cloudflare.com/companies/shopify.p... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://workers.cloudflare.com/companies/wix.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://workers.cloudflare.com/companies/block.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://workers.cloudflare.com/companies/doordash.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://workers.cloudflare.com/companies/stripe.pn... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://workers.cloudflare.com/companies/intercom.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://workers.cloudflare.com/companies/coreweave... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://workers.cloudflare.com/companies/leonardo.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://workers.cloudflare.com/companies/anthropic... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://workers.cloudflare.com/companies/canva.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://workers.cloudflare.com/companies/asana.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
13 images 22 KB
0 oversized -0 KB
13 legacy format
12 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

C
JS Execution Cost
Action
1346ms total JS execution
REVIEW
1346ms total JS execution
Warning::
https://workers.cloudflare.com/: 481ms CPU time
Warning::
https://workers.cloudflare.com/_astro/index.Cf_3gg...: 332ms CPU time
Info::
https://workers.cloudflare.com/_astro/client.CaeA_...: 225ms CPU time
Info::
Unattributable: 222ms CPU time
Info::
https://workers.cloudflare.com/_astro/paper-full.B...: 85ms CPU time
Warning::
Third-party scripts: 1346ms (100% of total)

Main Thread Breakdown

Other 39% Script Evaluation 26% Style & Layout 21% Rendering 10%
ScriptTotalScriptingParse/CompileParty
https://workers.cloudflare.com/481ms37ms3ms3rd
https://workers.cloudflare.com/_astro/index.Cf_3gg3D.js332ms53ms0ms3rd
https://workers.cloudflare.com/_astro/client.CaeA_d_Z.js225ms140ms0ms3rd
Unattributable222ms37ms0ms3rd
https://workers.cloudflare.com/_astro/paper-full.BYcUELjp.js85ms32ms0ms3rd
A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
3 fonts (67 KB)
PASS
3 fonts (67 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

67 KB total

Render-blocking

0

of 3

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s FCP 1.0 s LCP 1.7 shttps://workers.cloudflare.com/fonts/Kunst%20Grotesk%20Regular.woff2Kunst%20Grotesk%20Regul... https://workers.cloudflare.com/fonts/Kunst%20Grotesk%20Regular.woff2 — 19.2 KiB — 43 ms — font-display: swaphttps://workers.cloudflare.com/fonts/Kunst%20Grotesk%20Medium.woff2Kunst%20Grotesk%20Mediu... https://workers.cloudflare.com/fonts/Kunst%20Grotesk%20Medium.woff2 — 21.8 KiB — 568 ms — font-display: swaphttps://workers.cloudflare.com/fonts/Apercu%20Mono%20Pro%20Regular.woff2Apercu%20Mono%20Pro%20R... https://workers.cloudflare.com/fonts/Apercu%20Mono%20Pro%20Regular.woff2 — 26.0 KiB — 43 ms — font-display: swap
Kunst%20Grotesk%20Regul... woff2 swap
Size 19 KB
Load time 43 ms
Start 603 ms
Risk FOUT — text flashes from fallback to web font
Kunst%20Grotesk%20Mediu... woff2 swap
Size 22 KB
Load time 568 ms
Start 603 ms
Risk FOUT — text flashes from fallback to web font
Apercu%20Mono%20Pro%20R... woff2 swap
Size 26 KB
Load time 43 ms
Start 1.3 s
Risk FOUT — text flashes from fallback to web font
Optimization checklist
  • Preload critical fonts (priority=high)
  • Use woff2 format for all fonts
  • Set font-display to swap, optional, or fallback
  • Subset large fonts (≤100 KB each)
A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall
98 requests over 3708ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 1.0 s LCP 1.7 shttps://workers.dev// https://workers.dev/ — 301 — 112 B — 60 ms — h2https://workers.cloudflare.com/workers.cloudflare.com/ https://workers.cloudflare.com/ — 200 — 268.4 KiB — 570 ms — h2https://workers.cloudflare.com/_astro/_layout.astro_astro_type_script_index_2_lang.DNo_k8IE.jsworkers.cloudflare.com/_astro/_layo... https://workers.cloudflare.com/_astro/_layout.astro_astro_type_script_index_2_lang.DNo_k8IE.js — 200 — 767 B — 41 ms — h2https://workers.cloudflare.com/fonts/Kunst%20Grotesk%20Regular.woff2workers.cloudflare.com/fonts/Kunst%... https://workers.cloudflare.com/fonts/Kunst%20Grotesk%20Regular.woff2 — 200 — 19.2 KiB — 43 ms — h2https://workers.cloudflare.com/fonts/Kunst%20Grotesk%20Medium.woff2workers.cloudflare.com/fonts/Kunst%... https://workers.cloudflare.com/fonts/Kunst%20Grotesk%20Medium.woff2 — 200 — 21.8 KiB — 568 ms — h2https://ot.www.cloudflare.com/ot/scripttemplates/otSDKStub.jsot.www.cloudflare.com/ot/scripttemp... https://ot.www.cloudflare.com/ot/scripttemplates/otSDKStub.js — 200 — 8.5 KiB — 68 ms — h3https://workers.cloudflare.com/_astro/_editorPath_.D7O2pGyb.cssworkers.cloudflare.com/_astro/_edit... https://workers.cloudflare.com/_astro/_editorPath_.D7O2pGyb.css — 200 — 3.7 KiB — 42 ms — h2https://workers.cloudflare.com/_astro/index.BTYsgzhb.cssworkers.cloudflare.com/_astro/index... https://workers.cloudflare.com/_astro/index.BTYsgzhb.css — 200 — 56.1 KiB — 582 ms — h2https://workers.cloudflare.com/_astro/_slug_.JLjW3X1R.cssworkers.cloudflare.com/_astro/_slug... https://workers.cloudflare.com/_astro/_slug_.JLjW3X1R.css — 200 — 1.0 KiB — 564 ms — h2https://workers.cloudflare.com/_astro/agents.By3b-lcZ.cssworkers.cloudflare.com/_astro/agent... https://workers.cloudflare.com/_astro/agents.By3b-lcZ.css — 200 — 1.5 KiB — 562 ms — h2https://workers.cloudflare.com/_astro/_script.astro_astro_type_script_index_0_lang.BLA13u72.jsworkers.cloudflare.com/_astro/_scri... https://workers.cloudflare.com/_astro/_script.astro_astro_type_script_index_0_lang.BLA13u72.js — 200 — 1.4 KiB — 540 ms — h2https://workers.cloudflare.com/_astro/_layout.astro_astro_type_script_index_3_lang.DZB01yj1.jsworkers.cloudflare.com/_astro/_layo... https://workers.cloudflare.com/_astro/_layout.astro_astro_type_script_index_3_lang.DZB01yj1.js — 200 — 164 B — 543 ms — h2https://workers.cloudflare.com/_astro/console-utils.61zFt8QK.jsworkers.cloudflare.com/_astro/conso... https://workers.cloudflare.com/_astro/console-utils.61zFt8QK.js — 200 — 1.0 KiB — 525 ms — h2https://ot.www.cloudflare.com/ot/consent/b1e05d49-f072-4bae-9116-bdb78af15448/b1e05d49-f072-4bae-9116-bdb78af15448.jsonot.www.cloudflare.com/ot/consent/b1... https://ot.www.cloudflare.com/ot/consent/b1e05d49-f072-4bae-9116-bdb78af15448/b1e05d49-f072-4bae-9116-bdb78af15448.json — 200 — 2.7 KiB — 63 ms — h3https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516 — 200 — 10.7 KiB — 67 ms — h2https://geolocation.onetrust.com/cookieconsentpub/v1/geo/locationgeolocation.onetrust.com/cookiecons... https://geolocation.onetrust.com/cookieconsentpub/v1/geo/location — 200 — 308 B — 76 ms — h2https://ot.www.cloudflare.com/ot/scripttemplates/202503.1.0/otBannerSdk.jsot.www.cloudflare.com/ot/scripttemp... https://ot.www.cloudflare.com/ot/scripttemplates/202503.1.0/otBannerSdk.js — 200 — 110.4 KiB — 106 ms — h3https://ot.www.cloudflare.com/ot/consent/b1e05d49-f072-4bae-9116-bdb78af15448/018debfb-4ca4-7537-992d-44786afb66f9/en.jsonot.www.cloudflare.com/ot/consent/b1... https://ot.www.cloudflare.com/ot/consent/b1e05d49-f072-4bae-9116-bdb78af15448/018debfb-4ca4-7537-992d-44786afb66f9/en.json — 200 — 20.9 KiB — 60 ms — h3https://ot.www.cloudflare.com/ot/scripttemplates/202503.1.0/assets/otFlat.jsonot.www.cloudflare.com/ot/scripttemp... https://ot.www.cloudflare.com/ot/scripttemplates/202503.1.0/assets/otFlat.json — 200 — 4.0 KiB — 42 ms — h3https://ot.www.cloudflare.com/ot/scripttemplates/202503.1.0/assets/otCommonStyles.cssot.www.cloudflare.com/ot/scripttemp... https://ot.www.cloudflare.com/ot/scripttemplates/202503.1.0/assets/otCommonStyles.css — 200 — 5.0 KiB — 40 ms — h3https://workers.cloudflare.com/_astro/common.0FHQb7_N.jsworkers.cloudflare.com/_astro/commo... https://workers.cloudflare.com/_astro/common.0FHQb7_N.js — 200 — 25.2 KiB — 59 ms — h2https://workers.cloudflare.com/_astro/client.21cRBD2e.jsworkers.cloudflare.com/_astro/clien... https://workers.cloudflare.com/_astro/client.21cRBD2e.js — 200 — 994 B — 55 ms — h2https://workers.cloudflare.com/_astro/_container.34BFQ9nG.jsworkers.cloudflare.com/_astro/_cont... https://workers.cloudflare.com/_astro/_container.34BFQ9nG.js — 200 — 4.1 KiB — 56 ms — h2https://workers.cloudflare.com/_astro/_trigger.Dcvx3p1e.jsworkers.cloudflare.com/_astro/_trig... https://workers.cloudflare.com/_astro/_trigger.Dcvx3p1e.js — 200 — 2.4 KiB — 57 ms — h2https://workers.cloudflare.com/_astro/decorative.BKGKt-Wl.jsworkers.cloudflare.com/_astro/decor... https://workers.cloudflare.com/_astro/decorative.BKGKt-Wl.js — 200 — 290 B — 57 ms — h2https://workers.cloudflare.com/_astro/ui.DpBnWk9c.jsworkers.cloudflare.com/_astro/ui.Dp... https://workers.cloudflare.com/_astro/ui.DpBnWk9c.js — 200 — 385 B — 56 ms — h2https://workers.cloudflare.com/companies/anthropic.pngworkers.cloudflare.com/companies/an... https://workers.cloudflare.com/companies/anthropic.png — 200 — 1.3 KiB — 52 ms — h2https://workers.cloudflare.com/companies/canva.pngworkers.cloudflare.com/companies/ca... https://workers.cloudflare.com/companies/canva.png — 200 — 2.2 KiB — 43 ms — h2https://workers.cloudflare.com/companies/asana.pngworkers.cloudflare.com/companies/as... https://workers.cloudflare.com/companies/asana.png — 200 — 1.1 KiB — 65 ms — h2https://workers.cloudflare.com/companies/atlassian.pngworkers.cloudflare.com/companies/at... https://workers.cloudflare.com/companies/atlassian.png — 200 — 659 B — 67 ms — h2
0 ms 1.0 s 2.0 s 3.0 s FCP 1.0 s LCP 1.7 shttps://workers.dev// https://workers.dev/ — 301 — 112 B — 60 ms — h2https://workers.cloudflare.com/workers.cloudflare.com/ https://workers.cloudflare.com/ — 200 — 268.4 KiB — 570 ms — h2https://workers.cloudflare.com/_astro/_layout.astro_astro_type_script_index_2_lang.DNo_k8IE.jsworkers.cloudflare.com/_astro/_layo... https://workers.cloudflare.com/_astro/_layout.astro_astro_type_script_index_2_lang.DNo_k8IE.js — 200 — 767 B — 41 ms — h2https://workers.cloudflare.com/fonts/Kunst%20Grotesk%20Regular.woff2workers.cloudflare.com/fonts/Kunst%... https://workers.cloudflare.com/fonts/Kunst%20Grotesk%20Regular.woff2 — 200 — 19.2 KiB — 43 ms — h2https://workers.cloudflare.com/fonts/Kunst%20Grotesk%20Medium.woff2workers.cloudflare.com/fonts/Kunst%... https://workers.cloudflare.com/fonts/Kunst%20Grotesk%20Medium.woff2 — 200 — 21.8 KiB — 568 ms — h2https://ot.www.cloudflare.com/ot/scripttemplates/otSDKStub.jsot.www.cloudflare.com/ot/scripttemp... 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HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 1346ms · 471KB · €15/mo
workers.cloudflare.com
Other
Costly
Execution 481ms
Transfer 268 KB
Monthly Cost €5/mo
workers.cloudflare.com
Other
Costly
Execution 332ms
Transfer 27 KB
Monthly Cost €4/mo
workers.cloudflare.com
Other
Costly
Execution 225ms
Transfer 56 KB
Unused 38%
Monthly Cost €2/mo
Unattributable
Other
Costly
Execution 222ms
Transfer 0 KB
Monthly Cost €2/mo
workers.cloudflare.com
Other
Optional
Execution 85ms
Transfer 119 KB
Unused 70%
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • workers.cloudflare.com adds 481ms and costs ~€5/month
  • workers.cloudflare.com adds 332ms and costs ~€4/month
  • workers.cloudflare.com adds 225ms and costs ~€2/month
  • Unattributable adds 222ms and costs ~€2/month

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.

Learn more ▾

Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.

Source: web.dev

workers.cloudflare.com takes 481ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

workers.cloudflare.com takes 332ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

workers.cloudflare.com takes 225ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Unattributable takes 222ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

70% of workers.cloudflare.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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